Chassis Top - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

Chassis Top

I/O Subsystem Serviceability Indicators
Figure 11 shows the I/O subsystem serviceability indicators. The indicators are located on the I/O
board and are visible through the system top cover via light pipes. The I/O serviceability indicators
provide system power, system reset, and interlock status for various subsystem and module
connectors. These LEDs are powered by standby voltage to provide status as long as AC power is
supplied to the system.
System In Reset (amber)
System Power Good
(green)
I/O Board to Midplane
Board Interlock (green)
I/O Riser to I/O Board
Interlock (green)
Processor/Memory/CPU
Board Interlock (green)
SCSI Board to Midplane
Board Interlock (green)
30
On – system reset asserted
Off – system reset not asserted
On – system power within normal operational range
Off – system power failure
On – I/O subsystem inserted properly into midplane board
Off – I/O subsystem to midplane board interlock not detected
On – I/O riser inserted properly into I/O board
Off – I/O riser to I/O board interlock not detected
On – processor/memory subsystem inserted properly into midplane board
Off – processor/memory subsystem to midplane board interlock not detected
On – SCSI backplane board inserted properly into midplane board
Off – SCSI backplane board to midplane board interlock not detected
Figure 11. I/O Subsystem Serviceability Indicators
Attention System In Reset
System Power Good
OK
IO Bd/Midplane Interlock
OK
IO Riser/IO Bd Interlock
OK
Proc/Mem/CPU Bd Interlock
OK
SCSI Bd/Midplane Interlock
OK
Intel® SR870BN4 Server System Product Guide
OM12939